Three gorges dam in china is so massive it has actually slowed down the rotation of earth

Three gorges dam in china is so massive it has actually slowed down the rotation of earth
When the Three Gorges Dam was built, 39 trillion kilograms of water from the Yangtze River built up behind it to 175 meters above sea level. This altered the Earth’s moment of inertia changed ever so slightly, causing the rotation to move more slowly. NASA has calculated that the dam only slows the rotation by 0.06 microseconds, which is six hundredths of a millionth of a second.